GENERAL ORDERS, WAR DEPARTMENT, No. 193. General Orders, No. 42, War Department, October 26, 1903, is hereby rescinded and the following substituted therefor: The following reports will hereafter be made directly to the Chief of Artillery, United States Army, Washington, District of Columbia WASHINGTON, November 21, 1906. Form 1, O. C. A. (By artillery district commanders on the last day of each month.) Report of changes in the commissioned and noncommissioned staff personnel of the Artillery Corps. Form 1a, O. C. A. (By commanding officers of field artillery battalions on the last day of each month.) Report of changes in the commissioned and noncommissioned staff personnel of the Artillery Corps. Form 2, 0. C. A. (By the commanding officer of each company of coast artillery, beginning December 31, 1906, and on June 30 and December 31 of each year thereafter.) Report of master gunners and gunners. Form 2a, O. C. A. (By the commanding officer of each battery of field artillery.. beginning December 31, 1906, and on June 30 and December 31 of each year thereafter.) Report of gunners. [1183144, M. S. O.] BY ORDER OF THE SECRETARY OF WAR: OFFICIAL: THOMAS H. BARRY, Brigadier General, Acting Chief of Staff. HENRY P. McCAIN, Military Secretary. GENERAL ORDERS, No. 194. WAR DEPARTMENT, WASHINGTON, November 22, 1906. 1. All electric circuits used on seacoast gun carriages for different purposes are divided into five kinds, viz: Power, illumination, firing, telautograph, and telephone. 2. Depending upon their object or character, the first three kinds of circuits are divided into classes as follows, viz: Power circuits: Class I. Retracting motor. Class II. Retracting and elevating motor. Class III. Traversing motor. Class IV. Projectile-hoisting motor. Class V. Motors for miscellaneous purposes, such as opening and closing the breechblock of large-caliber guns, for combined ammunition trucks and loading machines, etc. Illuminating circuits: Class I. Containing 16, 8, and 2 candlepower lamps. Firing circuits: Class I. Independent metallic circuit for each carriage containing firing pistol and safety-firing switch; current obtained from dry-cell battery or equivalent. Class II. Independent metallic circuit for each carriage containing a firing pistol: current obtained from drycell battery or equivalent. Class III. Metallic circuit containing four mortars in parallel; current obtained from hand-operated magnetogenerator. POWER CIRCUITS. 3. Power circuits of this class receive their current directly from the emplacement mains thru the Engineer terminal box, and contain an Ordnance terminal box, a starting rheostat, and a direct-current motor having a speed of about 625 revolutions per minute, rated at 4 horsepower, but capable of developing 8 horsepower during short periods. The motor is used for retracting a gun mounted on a disappearing carriage from the firing to the loading position, and is wound for the same voltage as that of the mains of the emplacement in which the carriage is mounted. About 6 kilowatts may be required during short intervals for each motor used in circuits of this class. Two "B" conductors (see table in paragraph 45) are 2 required for connecting the emplacement mains thru the above Engineer terminal box with the Ordnance terminal box of each carriage. From the Engineer mains these two "B" conductors enter the Engineer terminal box in one 2-cored, lead-covered, iron-armored cable when there is only a retracting motor, or in a 7-cored, lead-covered, iron-armored cable when there are both retracting and traversing motors, the five additional cores being then used in connection with the latter. From the Engineer terminal box to the Ordnance terminal box they form part of a single lead-covered, multiplecored cable leading into the counterweight well, and are furnished, installed, and maintained by the Engineer Department. All other parts of these circuits, including Ordnance terminal box in the counterweight well, motor, etc., are furnished, installed, and maintained by the Ordnance Department. 4. Power circuits of Class I have been applied to the following carriages in service, viz: 12-inch disappearing carriages, L. F., model of 1901, Nos. 12 and 13. 10-inch disappearing carriages, L. F., model of 1901, Nos. 13, 14, and 15. 12-inch disappearing carriages, L. F., model of 1897, Nos. 1, 2, 3, 4, 5, 8, 13, 14, 15, 18, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, and 35. 12-inch disappearing carriages, L. F., model of 1896, Nos. 1 to 27, both inclusive. It is intended eventually to equip 10-inch disappearing carriages, A. R. F., model of 1896, and each year, beginning with 1906, to equip ten or twelve 10-inch disappearing carriages, L. F., models of 1894 or 1896, with power circuits of Class I, if funds shall have been provided in amount sufficient for the purpose. Twelve carriages, model of 1894, will be equipped in the fiscal year 1907. Class II. 5. Power circuits of this class are always associated with Class III and receive their current from the emplacement mains thru a switch on the switchboard of the motor-generator set for traversing motors of Class III and thence thru the Engineer terminal box. They contain an Ordnance terminal box, two rheostats with commutating switch, controller, and direct-current motor. The motor is used for elevating the gun or retracting it from the firing to the loading position, depending upon which train of gears is connected with it and upon the connection of the two rheostats, and is wound for the same voltage as that of the mains of the emplacement in which the carriage is mounted. About 6 kilowatts may be 3 required during short intervals for each motor rated at 4 horsepower used in circuits of this class; for motors of higher rating the number of kilowatts required will be correspondingly greater. Two "B" conductors (see table in paragraph 45) are required for connecting the elevating switch on the switchboard in the motor-generator room with the Ordnance terminal box thru the Engineer terminal box and two "C" conductors (see same table) for connecting the emplacement mains with the switchboard in the motor-generator room. These conductors (both "B" and "C") are furnished, installed, and maintained by the Engineer Department. Conductors "C" do not enter the Engineer terminal box and are simply feeders to the motor-generator switchboard. Conductors "B" between the switchboard in the motor-generator room and the Engineer terminal box form part of a 7-cored, lead-covered, iron-armored cable, of which the other five cores are part of the traversing motor circuits, and from the Engineer terminal box to the Ordnance terminal box they form part of the iron-armored lead-covered multiple-cored cable leading into the Ordnance terminal box located in the counterweight well. All other parts of these circuits, including Ordnance terminal box, motor, etc., are furnished, installed, and maintained by the Ordnance Department. Whenever the cost of maintenance of power control for elevation and traversing of carriages now in service becomes excessive, this form of control will be discontinued. 6. Power circuits of Class II with motors having a speed of about 625 revolutions per minute, rated at 4 horsepower, but capable of developing 8 horsepower during short periods, have been applied to the following carriages in service, viz: 12-inch disappearing carriages, L. F., model of 1901, Nos. 1 to 11, both inclusive. 10-inch disappearing carriages, L. F., model of 1901, Nos. 1 to 12, both inclusive. 12-inch disappearing carriages, L. F., model of 1897, Nos. 9 and 17. A power circuit of Class II will probably be applied to 16-inch disappearing carriage, L. F., model of 1906, No. 1; this carriage will require a motor of greater horsepower than the 10-inch and 12-inch carriages enumerated above. Class III. 7. Power circuits of this class receive their current directly from the emplacement mains and contain a switchboard and motor-generator set, and after passing thru the Engineer terminal box, and Ordnance terminal box, a controller containing a rheostat and commutating switch, and a direct-current motor. |